breast lump/clogged milk ducts

Good day! Would like to ask if someone here has the same experience with me, and ano po ung ginawa ninyo.. i had mastitis due to erong positioning sa pag papabreastfeed ko sa baby ko.. my OB gave me antibiotics and luckily, pumutok ung infected area sa breast ko at nka labas ung nana.. however, after nun, my bukol parin even having hot compress, massage and continuous breastfeeding, nandun parin ung bukol.. to those who have the same case like me, ano po ginawa ninyo? I'm worried po kasi.. tomorow pa po kasi sched ko for breast ultrasound.. thanks po sa makakasagot..